| Native Name: | Herrschaft (Freiherrschaft, Grafschaft) Rechberg und Rothenlöwen |
| Conventional Long Name: | Lordship (Barony, County) of Rechberg and Rothenlöwen |
| Common Name: | Rechberg and Rothenlowen |
| Era: | Middle Ages |
| Status: | Vassal |
| Empire: | Holy Roman Empire |
| Government Type: | Principality |
| Year Start: | 12th century |
| Year End: | 1806 |
| Life Span: | before 1206–1806 |
| Event Pre: | First mention of Rechberg |
| Date Pre: | 1176 |
| Date Start: | before 1206 |
| Event1: | Raised to barony |
| Date Event1: | 1577 |
| Event2: | Raised to county |
| Date Event2: | 1607 |
| Event3: | Inherited Osterberg |
| Date Event3: | 1767 |
| Event End: | Mediatised to Württemberg |
| Event Post: | Acquired by Bavaria |
| Date Post: | 1810 |
| P1: | Duchy of Swabia |
| S1: | Kingdom of Württemberg |
| Flag S1: | Flagge Königreich Württemberg.svg |
| Capital: | Unknown |
Rechberg and Rothenlöwen was a county within the Holy Roman Empire. Rechberg and Rothenlöwen was a renaming of Osterberg, and it inherited Osterberg in 1767. Rechberg and Rothenlöwen was mediatised to Württemberg in 1806. It was ruled by the House of Rechberg which would be an important one in the 19th century. Aloys was a prominent Bavarian statesman, while his son Johann Bernhard, would enter the Austrian diplomatic service and rise eventually to the post of Minister of Foreign Affairs.